package com.atguigu.cloudalibaba.config;

import com.alibaba.druid.pool.DruidDataSource;
import io.seata.rm.datasource.DataSourceProxy;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.transaction.SpringManagedTransactionFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;

import javax.sql.DataSource;

/**
 * 使用 Seata 对数据源进行代理
 *
 * @author jiang zhongxun
 * @create 2022-11-08 18:28
 */
@Configuration
public class DataSourceProxyConfig {

    @Value( "${mybatis.mapperLocations}" )
    private String mapperLocations ;

    @Bean
    @ConfigurationProperties(prefix = "spring.datasource" )
    public DataSource druidDataSource() {
        return new DruidDataSource() ;
    }

    @Bean
    public DataSourceProxy dataSourceProxy(DataSource dataSource) {
        return new DataSourceProxy(dataSource) ;
    }

    @Bean
    public SqlSessionFactory sqlSessionFactoryBean(DataSourceProxy dataSourceProxy) throws Exception {
        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean() ;
        sqlSessionFactoryBean.setDataSource(dataSourceProxy) ;
        sqlSessionFactoryBean.setMapperLocations( new PathMatchingResourcePatternResolver().getResources( mapperLocations )) ;
        sqlSessionFactoryBean.setTransactionFactory( new SpringManagedTransactionFactory()) ;
        return sqlSessionFactoryBean.getObject() ;
    }

}
